Răspuns:
Explicație pas cu pas:
1.
2^5/3^5
_________
1
_________
1/9^3 = 1/3^6
_________
23^2/99^2
_________
(9/4)^3 = 9^3/4^3 = 3^6/2^6
_____________________
2.
(5/7)^2 * (5.7)^3 = (5/7)^5
_________
(11/9)^10 : (11/9)^7 = (11/9)^3
_________
[(2/13)^3]^6 = (2/13)^18